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CVE-2026-56243

HIGH Exploitation: PoC
8.1
CVSS 3.1
Description
Capgo before 12.128.2 contains a security control bypass vulnerability where the PostgREST/RLS plane accepts plaintext API keys through the capgkey header despite enforce_hashed_api_keys being enabled. Attackers can bypass org-level hashed-key enforcement by sending plaintext API keys directly to the PostgREST/RLS plane to access protected resources.

Metadata

CVE ID
CVE-2026-56243
State
PUBLISHED
Assigner
VulnCheck
Reserved
2026-06-19 21:53 UTC
Published
2026-06-23 12:12 UTC
Last updated
2026-06-23 14:33 UTC
Primary CWE
CWE-288
Authentication Bypass Using an Alternate Path or Channel
Vendor / Product
Capgo / Capgo
Sources
cve.org  ·  NVD

Severity & Metrics

8.1 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
no
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
Capgo Capgo — 0 < 12.128.2, 12.128.2
Weakness (CWE)
CWESourceDescription
CWE-288 cna Authentication Bypass Using an Alternate Path or Channel
CVSS scores (2)
ScoreSeverityVersionSourceVector
8.6 HIGH 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
8.1 HIGH 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References (2)
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